FirstNature hummingbird feeder wasp/yellow jacket/bee/ant deterrent

thingiverse

After trying to trap yellow jackets and only getting a few dozen, it was clear that traps wouldn't do the trick so I tried printing some wasp/yellow jacket/bee-proof feeders. All five of them leak. Now the yellow jackets are swarming all over the last one still hanging so they're obviously getting fed by it. Time for the next step: make the feeders we already have only let hummingbirds get the food. After reading a bit, I came up with the simple solution of making a grommet for the hole the birds get the food from with an opening that will let hummingbirds feed but not anything else. Out came the calipers and opened up Inventor. In less than an hour, it's ready to print. You can see the wall was too thin to print in the middle so it leaves a hole through the side but that doesn't matter since that is inside and doesn't allow access to the food and it can't even be seen once installed. Printed it in TPU so it's soft for the birds and flexible as a grommet should be. Even printed it in red. They're small enough that 36 can be printed in one hour. The feeders have ten holes each, so some spares in case some get lost somehow. Oh yeah, 72 will fit easily on bed and is a two-hour print. Here's how I did it with seven feeders: 1. Print the grommets. 2. Trim the strings and push the punch through each one. 3. Press all into the feeder holes. 4. Press each one in good with a thumbnail so they're all seated well. 5. Hit each one's hole with a butane torch for about one second to eliminate any strings or rough edges. It also makes the opening open to the elliptical shape it was designed with. 6. Fill the feeders and watch everything go away unsatisfied but the hummingbirds. If you get really small ants, then you need an ant moat. I like this one I remixed from Intrglctcrevfnk's original: https://www.thingiverse.com/thing:2566167